196694538 has 16 divisors (see below), whose sum is σ = 393650400. Its totient is φ = 65521296.

The previous prime is 196694503. The next prime is 196694549. The reversal of 196694538 is 835496691.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313 + ... + 19836.

It is an arithmetic number, because the mean of its divisors is an integer number (24603150).

Almost surely, 2^196694538 is an apocalyptic number.

196694538 is an abundant number, since it is smaller than the sum of its proper divisors (196955862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196694538 is a wasteful number, since it uses less digits than its factorization.

196694538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21781.

The product of its digits is 1399680, while the sum is 51.

The square root of 196694538 is about 14024.7829929735. The cubic root of 196694538 is about 581.5638907675.

The spelling of 196694538 in words is "one hundred ninety-six million, six hundred ninety-four thousand, five hundred thirty-eight".